Device for tightening silo-hoops.



J. HANSON & L. 1v1. P00111.

DEVICE POR TIGHTBNING SILO HOOPS.

APPLICATION FILED AUG. 24, 1912.

1,075,564. Patented 001. 14, 1913.

Witnesses lnveniors o Attorneys' CCCCCCCC PLANOGRAPM cn.,wAsHxNuroN, n. c,

TINTE@ STATES PATENT FFTCE.

JOSEPH HANSON AND LESLIE M. FOUTE, OF INW'OOD, IOWA.

DEVICEFOR TIGHTENING SILO-HOOPS.

To all whom t may concern.'

Be it known that we, JOSEPH HANsoN and LESLIE M. F ooTE, citizens of the United States, residing at Inwood, in the county of Lyon, State of Iowa, have invented a new and useful Device for Tightening Silo Hoops, of which the following is a specification.

The device forming the subject matter of this application is adapted to be employed for tightening the hoops which surround a .silo or like structure.

Hitherto it has been necessary to ascend the silo, in order that the higher hoops thereof may be tightened, and in the tightening of the hoops, wrenches and like tools hitherto have been necessary. In the present invention, the hoops may be tightened while the operator is standing upon the ground, it being unnecessary to climb the silo, or to employ tools of any sort for effecting` the tightening operation.

The invention aims to provide novel means for connecting the ends of the hoop, to provide novel means for producing relative movement between the ends of the hoop, whereby the hoop may be tightened, and to provide means whereby the hoop of a silo or like structure may be tightened while the operator is standing upon the ground.

The invention aims further, to improve generally, tightening devices of the sort hereinafter set forth.

VVit-h the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings :-Figure 1 shows the invention in perspective, applied to a silo. Fig. 2 is a front elevation of the invention, parts being broken away and sectioned. Fig. 3 is a side elevation of the invention, a portion of the silo appearing in section. Fig. 4 is a section of the casing which receives the ends of the hoop, the cutting plan being passed along the line 4-4 of Fig. 2. Fig. 5 is a section of the casing along the line 5-5 of Fig. 2.

Referring to the drawings, the numeral l Speeicaton of Letters Batent.

Application led August 24, 1912.

Patented Oct. 14, 1913.

Serial No. 716,936.

indicates generally a silo, comprising, as usual, a plurality of staves 2. The silo 1 is surrounded by a plurality of hoops, one of which is shown in the drawing, and denoted generally by the numeral 3, the ends of the hoop 3 being indicated by the numerals 4 and 5.

The ends 4 and 5 of the hoop 3 pass through a casing which is denoted generally by the numeral 6. 'Ihe casing 6 fits against the silo 1 and comprises a pair of integrally formed, frusto-conical parts 7 and 8, the smaller ends of which are oppositely disposed. In the part 7 there is an opening 9 through which the ends 5 of the hoop 3 passes, and in the part 8 there is an opening 10 through which the part 4 of the hoop 3 is extended. The openings 9 and 10 are disposed in intersecting relation, the openings being tangentially disposed with respect to the periphery of the silo 1, so that the ends 4 and 5 of the hoop 3 may stand away from the outer face of the silo slightly. The position of the ends of the hoop, and notably the end 5, is of importance. since thereby, the use of the tightening device hereinafter described is permitted. Ordinarily the ends 4 and 5 of the hoop 3 are threaded, and upon the end 4 may be mounted a nut 11, which, engaging the portion 8 of the casing 6 serves to hold the end 4 in place when tension is placed upon the hoop 3 in a manner hereinafter described.

Threaded upon the end 5 of the hoop 3 is a ratchet nut 12, having lateral eXtensions 14 and 15, the extension 15 abutting against a washer 16, the washer 16 surrounding the end 5 and abutting against one end of the casing 6.

' The invention further includes a lever which is denoted generally by the numeral 17, the lever 17, having bifuract-ions 18 which are journaled for rotation upon the extensions 14 and l5. Supported in the bifurcations 18 is a shaft 19 which supports pivotally a pawl 20, the pawl 20 being adapted to engage with the ratchet nut l2. A spring 21 is shown, the saine, in its intermediate portion, being coiled about the extension 15 of the ratchet nut 12, the spring having at its lower end a hook 22 which engages with the end 5 of the hoop 3 between the washer 16 and one side face of the ratchet nut 12. At its opposite end, t-he spring 21 is equipped with a hook 23 which engages one edge of the lever 17. In order to provide for the operation of the lever 17, the saine is equipped at one end with a depending actuating ineniber 24 which may be a cord or rod, the saine being of sutlicient length to extend to a point well within the reach of a person standing upon the ground. The actuating n'ieinber 24 may be provided at its lower end with a handle 25.

ln' practical operation, a person standing upon the ground, seizes the actuating ineni ber 24 and pulls downwardly upon the saine, motion being thereby imparted to the lever 17, the lever 17 swinging with the extensions 14 and 15 as a 'lulcruin When the lever is swung, the pawl 2() will engage the ratchet nut 12, imparting a rotation to the ratchet nut 127 and since the ratchet nut is threaded upon the Vend 5 of the hoop 3, the ratchet nut will travel along end 5 of the hoop and abut against the washer 16, the same abutting against the casing 6, the hoo-p 3 being thereby put under tension. TWhen the actuating ine-niber 24: is released, the lever 17 at its free end will be swung upwardly due to the action of the spring 2l, which, during the depression of the tree end of the lever 17 has been put under tension.

Having thus described the invention, what is claimed is ln a device of the class described, a hoop; a casing in which the ends of the hoop are received; means for securing one end of the hoop in the casing; a ratchet nut threaded on the other end of the hoop and bearing against the casing; a lever fulcruined on he ratchet nut; a pawl on the leverl and cooperating with the ratchet nut; and a spring engaged in its intermediate portion with the nut, one end of the spring being connected with the lever and the other end of the spring being connected with the first speciied end or the hoop for sliding moveinent longitudinally of said end.

In testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two Witnesses.

JOSEPH HANSON. LESLIE M. FOUTE. Witnesses:

G. A. MANWARING, E. A. WELSH.

Copies of this patent may be obtained for ve cents each, by addressing the. Commissioner of Patents.

Washington, D. C. f 

